Justin Bieber Is Growing The Eff Up To Keep Selena Gomez On His Arm!

Is the world ready for a mature, well-behaved Justin Bieber?
We just might have to be, because it sounds like our little troublesome teenager is about to be a changed man!
The Biebs recently got a second third whatever chance with his lady love, and he doesn’t want to eff this one up!
And boy knows he’s running out of chances!
Now, he’s pulling out all the stops to keep Selena Gomez as his baby, baby, baaaaby.
An insider revealed the Biebs’ big plans to make things finally work this time around:

“They want to make sure that if they get back together they can do it right … Justin admitted that he has a lot of growing up to do.”

Damn right he does!
From showing up late to concerts, to whining about his failed birthday celebration to losing his shirt at every turn, the Biebs could certainly grow up a bit.
Who knows what will be next, maybe a REAL mustache that we can actually see?!
Okay, okay, we won’t expect the impossible!
[Image via Matthias Nareyek/PNP/WENN.]